2006 GMC Sierra 3500 Gas Tank Size & Fuel Capacity
Fuel tank capacity
34.0–35.0gal · 129–132 L
The 2006 GMC Sierra 3500 has a fuel tank capacity of 34.0 to 35.0 gallons (129–132 liters), depending on the trim. The most common size is 34.0 gallons, used on 44 trims.
35.0 gal · Bigger than 96% of 2006 models we list.
Listed separately: 2006 GMC Sierra 1500 (26.0–34.0 gal), 2006 GMC Sierra 1500HD (26.0 gal), 2006 GMC Sierra 2500HD (26.0–34.0 gal).
2006 GMC Sierra 3500 fuel tank capacity by trim
What changes the tank sizeTap an option to filter the table
- Drive
- Cab
- Engine
All 49 trims
| Trim | Engine | Drive | Tank | |||
|---|---|---|---|---|---|---|
| SL1 2dr Regular Cab 4WD LB 6.0L 8cyl 4A · 4WD | 6.0L 8cyl 4A | 4WD | 34.0 gal129 L | |||
| SL1 2dr Regular Cab 4WD LB DRW 6.0L 8cyl 5M · 4WD | 6.0L 8cyl 5M | 4WD | 34.0 gal129 L | |||
| SL1 2dr Regular Cab LB 6.0L 8cyl 4A · RWD | 6.0L 8cyl 4A | RWD | 34.0 gal129 L | |||
| SL1 4dr Crew Cab 4WD LB 6.0L 8cyl 4A · 4WD | 6.0L 8cyl 4A | 4WD | 34.0 gal129 L | |||
| SL1 4dr Crew Cab 4WD LB DRW 6.0L 8cyl 4A · 4WD | 6.0L 8cyl 4A | 4WD | 34.0 gal129 L | |||
| SL1 4dr Crew Cab LB 6.0L 8cyl 4A · RWD | 6.0L 8cyl 4A | RWD | 34.0 gal129 L | |||
| SL1 4dr Extended Cab 4WD LB 6.0L 8cyl 4A · 4WD | 6.0L 8cyl 4A | 4WD | 34.0 gal129 L | |||
| SL1 4dr Extended Cab 4WD LB DRW 6.0L 8cyl 4A · 4WD | 6.0L 8cyl 4A | 4WD | 34.0 gal129 L | |||
| SL1 4dr Extended Cab LB 6.0L 8cyl 4A · RWD | 6.0L 8cyl 4A | RWD | 34.0 gal129 L | |||
| SL1 4dr Extended Cab LB DRW 6.0L 8cyl 4A · RWD | 6.0L 8cyl 4A | RWD | 34.0 gal129 L | |||
| SLE1 2dr Regular Cab 4WD LB 6.0L 8cyl 4A · 4WD | 6.0L 8cyl 4A | 4WD | 34.0 gal129 L | |||
| SLE1 2dr Regular Cab 4WD LB DRW 6.0L 8cyl 5M · 4WD | 6.0L 8cyl 5M | 4WD | 34.0 gal129 L | |||
| SLE1 2dr Regular Cab LB 6.0L 8cyl 4A · RWD | 6.0L 8cyl 4A | RWD | 34.0 gal129 L | |||
| SLE1 4dr Crew Cab 4WD LB 6.0L 8cyl 4A · 4WD | 6.0L 8cyl 4A | 4WD | 34.0 gal129 L | |||
| SLE1 4dr Crew Cab 4WD LB DRW 6.0L 8cyl 4A · 4WD | 6.0L 8cyl 4A | 4WD | 34.0 gal129 L | |||
| SLE1 4dr Crew Cab LB 6.0L 8cyl 4A · RWD | 6.0L 8cyl 4A | RWD | 34.0 gal129 L | |||
| SLE1 4dr Extended Cab 4WD LB 6.0L 8cyl 4A · 4WD | 6.0L 8cyl 4A | 4WD | 34.0 gal129 L | |||
| SLE1 4dr Extended Cab 4WD LB DRW 6.0L 8cyl 4A · 4WD | 6.0L 8cyl 4A | 4WD | 34.0 gal129 L | |||
| SLE1 4dr Extended Cab LB 6.0L 8cyl 4A · RWD | 6.0L 8cyl 4A | RWD | 34.0 gal129 L | |||
| SLE1 4dr Extended Cab LB DRW 6.0L 8cyl 4A · RWD | 6.0L 8cyl 4A | RWD | 34.0 gal129 L | |||
| SLE2 4dr Crew Cab 4WD LB 6.0L 8cyl 4A · 4WD | 6.0L 8cyl 4A | 4WD | 34.0 gal129 L | |||
| SLE2 4dr Crew Cab 4WD LB DRW 6.0L 8cyl 4A · 4WD | 6.0L 8cyl 4A | 4WD | 34.0 gal129 L | |||
| SLE2 4dr Crew Cab LB 6.0L 8cyl 4A · RWD | 6.0L 8cyl 4A | RWD | 34.0 gal129 L | |||
| SLE2 4dr Extended Cab 4WD LB 6.0L 8cyl 4A · 4WD | 6.0L 8cyl 4A | 4WD | 34.0 gal129 L | |||
| SLE2 4dr Extended Cab 4WD LB DRW 6.0L 8cyl 4A · 4WD | 6.0L 8cyl 4A | 4WD | 34.0 gal129 L | |||
| SLE2 4dr Extended Cab LB 6.0L 8cyl 4A · RWD | 6.0L 8cyl 4A | RWD | 34.0 gal129 L | |||
| SLE2 4dr Extended Cab LB DRW 6.0L 8cyl 4A · RWD | 6.0L 8cyl 4A | RWD | 34.0 gal129 L | |||
| SLT 4dr Crew Cab 4WD LB 6.0L 8cyl 4A · 4WD | 6.0L 8cyl 4A | 4WD | 34.0 gal129 L | |||
| SLT 4dr Crew Cab 4WD LB DRW 6.0L 8cyl 4A · 4WD | 6.0L 8cyl 4A | 4WD | 34.0 gal129 L | |||
| SLT 4dr Crew Cab LB 6.0L 8cyl 4A · RWD | 6.0L 8cyl 4A | RWD | 34.0 gal129 L | |||
| SLT 4dr Extended Cab 4WD LB 6.0L 8cyl 4A · 4WD | 6.0L 8cyl 4A | 4WD | 34.0 gal129 L | |||
| SLT 4dr Extended Cab 4WD LB DRW 6.0L 8cyl 4A · 4WD | 6.0L 8cyl 4A | 4WD | 34.0 gal129 L | |||
| SLT 4dr Extended Cab LB 6.0L 8cyl 4A · RWD | 6.0L 8cyl 4A | RWD | 34.0 gal129 L | |||
| SLT 4dr Extended Cab LB DRW 6.0L 8cyl 4A · RWD | 6.0L 8cyl 4A | RWD | 34.0 gal129 L | |||
| Work Truck 2dr Regular Cab 4WD LB 6.0L 8cyl 4A · 4WD | 6.0L 8cyl 4A | 4WD | 34.0 gal129 L | |||
| Work Truck 2dr Regular Cab 4WD LB DRW 6.0L 8cyl 5M · 4WD | 6.0L 8cyl 5M | 4WD | 34.0 gal129 L | |||
| Work Truck 2dr Regular Cab LB 6.0L 8cyl 4A · RWD | 6.0L 8cyl 4A | RWD | 34.0 gal129 L | |||
| Work Truck 4dr Crew Cab 4WD LB 6.0L 8cyl 4A · 4WD | 6.0L 8cyl 4A | 4WD | 34.0 gal129 L | |||
| Work Truck 4dr Crew Cab 4WD LB DRW 6.0L 8cyl 4A · 4WD | 6.0L 8cyl 4A | 4WD | 34.0 gal129 L | |||
| Work Truck 4dr Crew Cab LB 6.0L 8cyl 4A · RWD | 6.0L 8cyl 4A | RWD | 34.0 gal129 L | |||
| Work Truck 4dr Extended Cab 4WD LB 6.0L 8cyl 4A · 4WD | 6.0L 8cyl 4A | 4WD | 34.0 gal129 L | |||
| Work Truck 4dr Extended Cab 4WD LB DRW 6.0L 8cyl 4A · 4WD | 6.0L 8cyl 4A | 4WD | 34.0 gal129 L | |||
| Work Truck 4dr Extended Cab LB 6.0L 8cyl 4A · RWD | 6.0L 8cyl 4A | RWD | 34.0 gal129 L | |||
| Work Truck 4dr Extended Cab LB DRW 6.0L 8cyl 4A · RWD | 6.0L 8cyl 4A | RWD | 34.0 gal129 L | |||
| SL1 4dr Crew Cab LB DRW 6.0L 8cyl 4A · RWD | 6.0L 8cyl 4A | RWD | 35.0 gal132 L | |||
| SLE1 4dr Crew Cab LB DRW 6.0L 8cyl 4A · RWD | 6.0L 8cyl 4A | RWD | 35.0 gal132 L | |||
| SLE2 4dr Crew Cab LB DRW 6.0L 8cyl 4A · RWD | 6.0L 8cyl 4A | RWD | 35.0 gal132 L | |||
| SLT 4dr Crew Cab LB DRW 6.0L 8cyl 4A · RWD | 6.0L 8cyl 4A | RWD | 35.0 gal132 L | |||
| Work Truck 4dr Crew Cab LB DRW 6.0L 8cyl 4A · RWD | 6.0L 8cyl 4A | RWD | 35.0 gal132 L | |||
| No trim matches all of these filters. | ||||||
Tank figures are the manufacturer's rated capacity, sorted smallest tank first. The EPA doesn't rate fuel economy for heavy-duty pickups and vans (over 8,500 lb gross vehicle weight), so these trims have no official MPG or range.
What it costs to fill up a 2006 GMC Sierra 3500
$145.18 to fill the 34.0-gallon tank from empty with regular, at this week's US average of $4.27 a gallon.
| Tank | Fuel | US avg / gal | From empty | From 1/4 tank |
|---|---|---|---|---|
| 34.0 gal | Regular | $4.27 | $145.18 | $108.88 |
| 35.0 gal | Regular | $4.27 | $149.45 | $112.09 |
By region, 34.0-gallon tank
| Region | Regular / gal | Fill from empty |
|---|---|---|
| East Coast | $4.02 | $136.68 |
| Midwest | $4.27 | $145.18 |
| Gulf CoastLowest | $3.70 | $125.80 |
| Rocky Mountain | $4.46 | $151.64 |
| West Coast | $5.42 | $184.28 |
| CaliforniaHighest | $5.89 | $200.26 |
Prices: U.S. Energy Information Administration retail averages for the week of October 26, 2026. This week's prices by state and city.
Your own price
- 34.0-gallon tank$145.18
- 35.0-gallon tank$149.45
Starts at the US average for regular; type in what your station charges. For other tank sizes, use the fill-up calculator.
Sierra 3500 tank size in other years
The 2006 Sierra 3500 uses the same 34.0–35.0 gal tank sizes as the 2005 model.
| Model year | Tank | Longest highway range |
|---|---|---|
| 2006 Sierra 3500 | 34.0–35.0 gal | Not rated |
| 2005 Sierra 3500 | 34.0–35.0 gal | Not rated |
| 2004 Sierra 3500 | 34.0 gal | Not rated |
| 2003 Sierra 3500 | 34.0 gal | Not rated |
| 2002 Sierra 3500 | 34.0 gal | Not rated |
| 2001 Sierra 3500 | 34.0 gal | Not rated |
2006 GMC Sierra 3500 vs similar 2006 pickups
At 35.0 gallons, the Sierra 3500's largest tank ranks second of the three 2006 pickups compared here. The Ford F-250 Super Duty carries the most (38.0 gal) and the Chevrolet Silverado 3500 the least (34.0 gal).
| 2006 model | Tank | Longest highway range |
|---|---|---|
| Ford F-250 Super Duty | 29.0–38.0 gal | Not rated |
| GMC Sierra 3500 | 34.0–35.0 gal | Not rated |
| Chevrolet Silverado 3500 | 34.0 gal | Not rated |
Other 2006 pickups of a similar size, one model per brand.
2006 GMC Sierra 3500 fuel pump and gauge parts
These are the part numbers the makers list for the 2006 GMC Sierra 3500. Check the fuel system recalls first: recall repairs are free.
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Frequently asked questions
What is the fuel tank capacity of the 2006 GMC Sierra 3500?
The 2006 GMC Sierra 3500 holds between 34.0 and 35.0 gallons, depending on the trim. 34.0 gallons is the usual size; the 35.0-gallon tank comes on the SL1 4dr Crew Cab LB DRW (6.0L 8cyl 4A).
How many gallons and liters does the 2006 GMC Sierra 3500 gas tank hold?
The 2006 GMC Sierra 3500 tank holds 129–132 liters, or 34.0–35.0 gallons in US gallons.
Which 2006 GMC Sierra 3500 has the biggest gas tank?
The 35.0-gallon tank is on the SL1 4dr Crew Cab LB DRW, SLE1 4dr Crew Cab LB DRW, SLE2 4dr Crew Cab LB DRW and 2 other trims. The smallest tank, 34.0 gallons, is on the SL1 2dr Regular Cab 4WD LB.
Does 4WD change the 2006 GMC Sierra 3500 gas tank?
Yes. 4WD: 34.0 gal; RWD: 34.0–35.0 gal.
What gas does the 2006 GMC Sierra 3500 take?
Regular unleaded. The label inside the fuel door confirms it for your car.
How much does it cost to fill up a 2006 GMC Sierra 3500?
At the US average of $4.27 a gallon for regular (EIA, week of October 26, 2026), filling the 34.0-gallon tank from empty costs $145.18. It ranges from $125.80 in the Gulf Coast to $200.26 in California.
How much does a full tank of gas weigh in a 2006 GMC Sierra 3500?
About 217 pounds for the 35.0-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
Does the 2006 GMC Sierra 3500 have a bigger gas tank than the Chevrolet Silverado 3500?
Yes. The 2006 GMC Sierra 3500 holds up to 35.0 gallons; the 2006 Chevrolet Silverado 3500 holds up to 34.0.
Sources
- Tank sizes: manufacturer-rated capacities from US-market specifications, checked against independent references. Updated October 2026.
- MPG and range: EPA ratings. Range is tank size times EPA MPG.
- Fuel prices: U.S. Energy Information Administration, week of October 26, 2026 (this week's prices).
Does your owner's manual say something different? Let us know and we'll fix it. More on how we check the numbers.